Improvement in spindle-bolsters



GEORGE RICHARDSON, OF LOWELL, MASSACHUSETTS..

IMPRovEMENT IN sPmDLE-eoLs--ERS.

Specification forming part of Letters Patent No. 143,785, dated October 21, 1873; 'application tiled September 22, 1873.

To all whom it may concern:

Beit known that I, GEORGE RICHARDSON, otl Lowell, of the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement' in Bolsters for the Spindles of Spinnin g-Machines; and do hereby declare the same to be -fully described in the following specification, and represented in the accompanying drawings, in which- Figure l denotes a front view, and Fig. 2 a vertical section, of a spindle and my improved bolster. Figs. 3 and 4 are vertical sections ot' the bolster, one section being taken through its oil-educt, and the other through the capilL lary oil-induets.

In such drawings, A denotes the spindle, and B the bolster.

One object otl my invention is to prevent the rise of oil outof the bolster at its top 'and upon the spindle and its discharge therefrom by centrifugal force in longitudinal directions, upon the spinning-frame or the adjacent cops of the spindles.

My present bolster involves the annular trough, the bolster extension above such, and one or more capillary educts, essentially as shown in my patent No. 137,239, dated March 25, 187.3. Il have combined therewith not only a helical gioove within the bore of the bolster, but an educt to lead out of the bore, below its top, and into the annular trough. In other words, in carrying out my invention, I form the'bore a of the bolster with a helical groove, b, to extend around within it, and to be closed at either or both ends. It is to be closed at its upper end or to terminate within a short distance of the top of the bolster, and I `prefer to -close it at its lower end, or terminate it at a s'hort distance from the bottom of the bolster, although this latter is not essential. The bolster I form or construct with a surrounding channel ortrough, c, for reception oi1 oil, such trough being located below the top of the bolster, in manner as shown. In that portion of the bolster which rises above the trough c I form a vertical slot or educt, d, to extend la-terally out of the bore and open out thereof below the top of the bolster. I also form in the part above the bottom ot' the trough one or more capillary holes or passages or inducts, e e, which, in Fig. 4 of the drawings, are represented as inclined, opening from the trough into the bore at parts above the trough. On

oil being poured into the trough it will, by the induct or inducts e, be drawn upward by capillary attraction, and .caused to iiow into the bore ofthe bolster and around in and down its helical groove. The spindle in revolving will ca-use the oil to rise in the helical groove, from whencethe surplus will escape by the educt into the trough. Tere the helical groove to open out ofthe top of the bolster the oil would rise to such top and be thrown off tangentially by the spindle, but by having the groove terminate below the top and open into the educt, leading from below the said top into the oiltrough, the surplus oil is prevented from escaping at the top of the bolster and being thrown oit' tangeutially by the spindle, as before stated. ,r

With my improved bolster the bore will be thoroughly lubricated without material waste of oil, there being a constant tlowage of the surplus through the educt into the trough, and from thence through theinduct or inducts back into the bore.

By having the bolster' helical groove stopped at its lower end, waste of oil out of such end and upon that part of the spindle which is below the bolster, will be prevented, in a great measure, if not entirely, whether the bolster be provided with the educt or not.

I disclaim a bolster provided with a helical groove, an oil-receiver, an educt, and an oiling induct, arranged in manner, and to operate as represented, in the United States Patent No. 134,863, in which case the oil-receiver is at the top of the bolster, and is open at its top, all causing the bolster to differ in construction and operation from my improved bolster, whose top is closed, or not open, in order that there may be no discharge of oil therefrom tangentially by the spindle.

I claim as my invention- The bolster provided with the reservoir or trough 0 one or more capillary inducts, c, one or more helical grooves, b, and the educt d, constructed substantially as specied.

GEORGE RICHARDSON.

IVitnesses R. H. EDDY, J. R. SNow. 

